The combined company will benefit from complementary assets, enabling an advantaged fuel supply and further diversifying Sunoco's portfolio and geographic footprint.

U.S. fuel supplier Sunoco has struck a $9.1-billion deal to buy Canada-based Parkland, a move that would create the Americas' largest independent fuel distributor but which Parkland's largest shareholder immediately criticized.

Sunoco moved to expand its reach with a $9.1 billion deal to buy Canada’s Parkland, bringing with it a fleet of gas stations and a west-coast refinery.The companies said Monday they reached a definitive agreement that will see Parkland shareholders receive a mix of cash and shares.